JP5618367B2 - How to clean the dry cleaner - Google Patents

Description

  The present invention relates to a cleaning method capable of removing fixed substances such as dirt that adhere to the inner surface of an outer cylinder of a dry cleaner and are difficult to remove.

Conventionally, as dry cleaners, there are petroleum-based dry cleaners that use petroleum-based solvents and synthetic-solvent-based dry cleaners that use synthetic solvents such as tetrachloroethylene, chlorofluorocarbon solvents, and pentafluorobutane.
Of these, in the case of petroleum-based dry cleaners, the object to be cleaned is generally washed and de-liquid, and then dried, deodorized and finished with a dedicated dryer. A series of steps of washing, dewatering, drying, and deodorizing a washing item is performed by one apparatus according to the following procedure.

(1) Cleaning process: The solvent is sent from the base tank storing the solvent through the cartridge filter into the inner cylinder / outer cylinder containing the object to be cleaned, and the inner cylinder rotates to clean the object to be cleaned. .
(2) Dewatering process: When washing of the object to be cleaned is completed, the solvent in the inner and outer cylinders is discharged, and after passing through a button trap for removing solids such as buttons, a still tank and a still condenser by a pump After being sent to a water separator, distilled and purified, it is collected in a new liquid tank.
(3) Drying process: The heated air sent into the inner and outer cylinders evaporates the solvent inside, and the air containing this solvent is removed from the lint by a lint box. The solvent is recovered by cooling and liquefying, and the air from which the solvent has been removed is sent again into the inner and outer cylinders, and the series of operations is repeated.
(4) Deodorizing step: The outside air is introduced into the inner body / outer body, the air is passed through the activated carbon tank, the odor is removed, and the air is exhausted.

Japanese Patent Laid-Open No. 7-24178

In the dry cleaner using the synthetic solvent described above, the object to be washed is washed by introducing a liquid detergent into the solvent, and as shown in FIG. In addition, a sticky solid material 12 in which the detergent component and lint and dust from the object to be cleaned are integrated is attached to the rear of the inner surface and is firmly fixed by drying in the drying process.
Then, when this series of steps is repeated dozens of times, as shown in FIG. 4, the solid matter 12 gradually increases, and when it becomes large to some extent, it is peeled off by vibration or the like during washing of the washing object. There was a thing. And there was a possibility that the solid matter 12 such as the dirt that peeled off would decontaminate the washed object.

  Therefore, an apparatus has been devised that prevents the solid matter 12 from sticking by injecting a solvent onto the inner surface of the outer cylinder 11 at the start of cleaning of the article to be washed so that the solid substance 12 does not accumulate on the inner surface of the outer cylinder 11. However, in addition to the increase in the size of the apparatus, the inner surface of the outer cylinder 11 could not be cleaned cleanly. As one of the causes, the gap between the inner surface of the outer cylinder 11 and the outer surface of the inner cylinder 13 to which the solid matter 12 adheres is a narrow region of several centimeters or less as shown in FIG. It was in a structure that could not be used for instrumentation or manual cleaning.

  The present invention has been made in view of such circumstances, and in a dry cleaner using a synthetic solvent, solid matter such as dirt adhering to the inner surface of the outer body is removed by a simple method to maintain cleanliness. It is an object of the present invention to provide a dry cleaner cleaning method that can be used.

  As a result of diligent research in view of the above problems, the present inventor has found that a dry cleaner that can remove solids such as dirt adhering to the inner surface of the outer body by a simple method without attaching a new device to the dry cleaner. Came to devise a stationary cleaning method.

  That is, in the dry cleaner stationary cleaning method of the present invention, the inner surface of the outer cylinder is cleaned in a dry cleaner that washes an object to be washed in a rotatable inner cylinder disposed inside the outer cylinder with a solvent. The cleaning liquid to be put into the outer cylinder is set at a higher liquid level than the solvent level when washing the object to be washed, and the rotational speed of the inner cylinder is rotated by the rotation of the inner cylinder. The dirt that adheres to the inner surface of the outer cylinder by causing the cleaning liquid to fall and scatter at the top of the inner and outer cylinders faster than the time of washing the articles to the top of the inner and outer cylinders. It is characterized by pouring off the solid matter such as.

  Further, the rotation speed of the inner cylinder is set to a rotation speed corresponding to a centrifugal magnification of 1.5G to 3.0G.

  As described above, according to the stationary cleaning method of the dry cleaner of the present invention, the solvent lifted to the vicinity of the apex between the outer cylinder and the inner cylinder falls to the upper surface of the inner cylinder and rebounds, It is scattered in all directions, and the scattered solvent can flow down solid matters such as dirt adhered in the outer cylinder.

It is a system diagram of the dry cleaner of the present invention. It is explanatory drawing which shows the state which the inner cylinder in the dry cleaner of this invention stopped. It is explanatory drawing which shows the stationary cleaning method of the dry cleaner of this invention. It is explanatory drawing which shows the state which solid substances, such as a dirt, adhered to the dry cleaner.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment for carrying out a dry cleaner stationary cleaning method of the present invention will be described in detail with reference to the accompanying drawings. 1 to 3 are diagrams illustrating embodiments of the present invention. In these drawings, the same reference numerals denote the same components, and the basic configuration and operation are the same. To do.

  1 and 2 show a dry cleaner according to a stationary cleaning method of the present invention, and this dry cleaner 1 is a horizontal cylindrical tank for storing an object to be cleaned, and an inner cylinder 2 that rotates around a horizontal axis, The inner cylinder 2 is entirely covered and an outer cylinder 3 for storing the solvent 4 therein is provided.

The inner cylinder 2 is pivotally supported by a horizontal rotating shaft (not shown) inserted through the outer cylinder 3 on the back side thereof, and rotates in one direction at the time of washing or at a constant speed while reversing the rotating direction at regular time intervals. Rotate with. In front of the inner cylinder 2, an opening for introducing and discharging the object to be washed is provided, and the outer cylinder 3 is provided with an opening / closing door corresponding to the opening.
The outer cylinder 3 of the dry cleaner 1 is provided with an overflow port (not shown) for keeping the liquid level of the stored solvent constant, and the solvent 4 is injected to the liquid level of the overflow port to be cleaned. Washing things.

  In this embodiment, the outer diameter of the inner cylinder 2 is 920 mm, the inner diameter of the outer cylinder 3 is 966 mm, and the gap between the outer cylinder 3 and the inner cylinder 2 is 23 mm. The inner cylinder 2 that stores and rotates the object to be cleaned is a porous cylinder, so that the solvent stored in the outer cylinder 3 is stored in the lower part of the inner cylinder 2 through the hole so as to freely enter and exit. It immerses the item to be washed.

In the dry cleaner 1 having such a structure, the stationary cleaning method of the present invention will be described in detail below.
First, as shown in FIG. 2, the solvent 4 is injected into the outer body 3, the overflow port (not shown) is closed, and the liquid level is set higher than that during normal washing.

Next, the inner cylinder 2 is rotated at a rotational speed of 69 rpm, which is higher than that during normal washing (the centrifugal force of the outer surface of the inner cylinder at this rotational speed is set to a magnification of 9.8 m / s ² of standard gravitational acceleration). In this case, the rotation was forward rotation for 3 minutes, followed by rotation for 3 minutes in reverse rotation.
At this time, as shown in FIG. 3, the solvent 4 is rotated by the inner cylinder 2 that rotates at high speed and reaches the tops of the inner cylinder 2 and the outer cylinder 3, and the solvent 4 that falls there hits the upper surface of the inner cylinder 2. It scatters in all directions in the outer trunk 3. The scattered solvent 4 was able to suitably wash off solid matter such as dirt adhering to the inner surface of the outer cylinder 3. Among the solid matter that has been washed away, a large one is captured by the button trap 5 shown in FIG. 1, and a small one is sent to a still tank and recovered by distillation.

  In this example, the solids could be washed out most efficiently when the centrifugal magnification was 2.44G described above, but the present invention is not limited to this value. Experiments confirmed that there was a range of suitable centrifugal magnifications depending on the dimensions, and the range was 1.5G to 3.0G. And the stationary cleaning method of the present invention, without attaching a new device to the conventional dry cleaner, only once every 50 washings, storing a large amount of solvent and normal rotation of the inner cylinder for 3 minutes, Solid matter such as dirt that adheres can be suitably washed off only by reversing for 3 minutes.

  The stationary cleaning method for a dry cleaner according to the present invention can be used in the industry for manufacturing a dry cleaner.

1 Dry cleaner 2 Inner cylinder 3 Outer cylinder 4 Solvent

Claims (1)

In a dry cleaner for washing an object to be washed in a rotatable inner cylinder disposed inside the outer cylinder with a solvent,
The cleaning liquid to be put into the outer cylinder to clean the inner surface of the outer cylinder is set at a higher liquid level than the liquid level of the solvent when washing the washing object,
And a rotation speed corresponding to the rotational speed of the inner cylinder in faster centrifugal magnification 1.5G~3.0G than during the washing of the washing object, an inner cylinder the cleaning liquid co-rotation by the rotation of said cylinder, A dry cleaner stationary cleaning method characterized in that it reaches the top of the outer cylinder, where the cleaning liquid is dropped and scattered to wash off solid matter such as dirt adhering to the inner surface of the outer cylinder.

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